No se puede instanciar la clase android.support.v7.widget.SearchView

¡Por favor, que alguien me ayude! Estoy tratando de agregar la vista de búsqueda appcompat a mi proyecto. Sin éxito. Cuando cambio android.support.v7.widget.SearchView to SearchView (API> 10) todo está bien.

Este mi menú res:

<item android:id="@+id/action_search" android:title="@string/search_view_title" android:icon="@drawable/action_search" sabd:showAsAction="always|collapseActionView" sabd:actionViewClass="android.support.v7.widget.SearchView" /> 

Esto es cómo intento utilizar SeachView:

  @Override public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { inflater.inflate(R.menu.teach, menu); mSearchItem = menu.findItem(R.id.action_search); mSearchItem.setVisible(true); mSearchView = (SearchView) MenuItemCompat.getActionView(mSearchItem); mSearchView.setQueryHint(getString(R.string.search_view_hint)); mSearchView.setOnQueryTextListener(this); } 

Este mi archivo de manifiesto:

 <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="ru.rgups.time" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="10" android:targetSdkVersion="17" /> <uses-permission android:name="android.permission.INTERNET"/> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/> <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" /> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> <application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/Theme.Base.AppCompat.Light" android:name="RTApplication"> <activity android:name="ru.rgups.time.MainActivity" android:configChanges="orientation|keyboardHidden" android:label="@string/app_name" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <activity android:name=".fragments.WelcomeActivity"></activity> <service android:name=".spice.SampleSpiceService"></service> <activity android:name=".activities.AuthActivity"></activity> <activity android:name=".activities.HomeWorkActivity" android:uiOptions="splitActionBarWhenNarrow"> </activity> <receiver android:name="ru.rgups.time.receiver.HomeWorkNotificationReceiver"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </receiver> </application> </manifest> 

Y esto lo que veo en logs:

  03-22 21:46:58.583: W/SupportMenuInflater(28798): Cannot instantiate class: android.support.v7.widget.SearchView 03-22 21:46:58.583: W/SupportMenuInflater(28798): java.lang.reflect.InvocationTargetException 03-22 21:46:58.583: W/SupportMenuInflater(28798): at java.lang.reflect.Constructor.constructNative(Native Method) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at java.lang.reflect.Constructor.newInstance(Constructor.java:423) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at android.support.v7.internal.view.SupportMenuInflater$MenuState.newInstance(SupportMenuInflater.java:482) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at android.support.v7.internal.view.SupportMenuInflater$MenuState.setItem(SupportMenuInflater.java:441) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at android.support.v7.internal.view.SupportMenuInflater$MenuState.addItem(SupportMenuInflater.java:462) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at android.support.v7.internal.view.SupportMenuInflater.parseMenu(SupportMenuInflater.java:196) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at android.support.v7.internal.view.SupportMenuInflater.inflate(SupportMenuInflater.java:118) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at ru.rgups.time.fragments.TeachersListFragment.onCreateOptionsMenu(TeachersListFragment.java:109) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at android.support.v4.app.Fragment.performCreateOptionsMenu(Fragment.java:1582) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at android.support.v4.app.FragmentManagerImpl.dispatchCreateOptionsMenu(FragmentManager.java:1956) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at android.support.v4.app.FragmentActivity.onCreatePanelMenu(FragmentActivity.java:225) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at android.support.v7.app.ActionBarActivity.superOnCreatePanelMenu(ActionBarActivity.java:232) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at android.support.v7.app.ActionBarActivityDelegateICS.onCreatePanelMenu(ActionBarActivityDelegateICS.java:147) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at android.support.v7.app.ActionBarActivity.onCreatePanelMenu(ActionBarActivity.java:199) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at android.support.v7.app.ActionBarActivityDelegateICS$WindowCallbackWrapper.onCreatePanelMenu(ActionBarActivityDelegateICS.java:285) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at com.android.internal.policy.impl.PhoneWindow.preparePanel(PhoneWindow.java:436) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at com.android.internal.policy.impl.PhoneWindow.doInvalidatePanelMenu(PhoneWindow.java:800) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at com.android.internal.policy.impl.PhoneWindow$1.run(PhoneWindow.java:221) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:761) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at android.view.Choreographer.doCallbacks(Choreographer.java:574) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at android.view.Choreographer.doFrame(Choreographer.java:543) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at android.os.Handler.handleCallback(Handler.java:733) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at android.os.Handler.dispatchMessage(Handler.java:95) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at android.os.Looper.loop(Looper.java:136) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at android.app.ActivityThread.main(ActivityThread.java:5017) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at java.lang.reflect.Method.invokeNative(Native Method) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at java.lang.reflect.Method.invoke(Method.java:515) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at dalvik.system.NativeStart.main(Native Method) 03-22 21:46:58.583: W/SupportMenuInflater(28798): Caused by: android.view.InflateException: Binary XML file line #41: Error inflating class <unknown> 03-22 21:46:58.583: W/SupportMenuInflater(28798): at android.view.LayoutInflater.createView(LayoutInflater.java:620) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at android.view.LayoutInflater.onCreateView(LayoutInflater.java:669) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:694) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at android.view.LayoutInflater.rInflate(LayoutInflater.java:755) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at android.view.LayoutInflater.inflate(LayoutInflater.java:492) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at android.view.LayoutInflater.inflate(LayoutInflater.java:397) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at android.support.v7.widget.SearchView.<init>(SearchView.java:262) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at android.support.v7.widget.SearchView.<init>(SearchView.java:254) 03-22 21:46:58.583: W/SupportMenuInflater(28798): ... 31 more 03-22 21:46:58.583: W/SupportMenuInflater(28798): Caused by: java.lang.reflect.InvocationTargetException 03-22 21:46:58.583: W/SupportMenuInflater(28798): at java.lang.reflect.Constructor.constructNative(Native Method) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at java.lang.reflect.Constructor.newInstance(Constructor.java:423) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at android.view.LayoutInflater.createView(LayoutInflater.java:594) 03-22 21:46:58.583: W/SupportMenuInflater(28798): ... 39 more 03-22 21:46:58.583: W/SupportMenuInflater(28798): Caused by: android.content.res.Resources$NotFoundException: Resource is not a Drawable (color or path): TypedValue{t=0x2/d=0x7f010069 a=-1} 03-22 21:46:58.583: W/SupportMenuInflater(28798): at android.content.res.Resources.loadDrawable(Resources.java:2068) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at android.content.res.TypedArray.getDrawable(TypedArray.java:602) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at android.widget.ImageView.<init>(ImageView.java:129) 03-22 21:46:58.583: W/SupportMenuInflater(28798): at android.widget.ImageView.<init>(ImageView.java:119) 03-22 21:46:58.583: W/SupportMenuInflater(28798): ... 42 more 

Tuve un similar probablemente que apareció en mis compilaciones de lanzamiento, pero no mis compilaciones de depuración al cambiar a la biblioteca de soporte v21. Resultó ser un problema de ofuscación, y la adición de esta línea a mi archivo proguard-rules.txt arregló:

 -keep class android.support.v7.widget.SearchView { *; } 

Tuve el mismo problema cuando estaba usando Android Studio y Gradle para construir mi proyecto. Me gustaría añadir un SearchView de v7 compat.

La solución es cambiar gradle plugin versión de 0.9.1 u otros a 0.9.0. Es una forma temporal que encontré. Tal vez un error de gradle plugin. Espero que ayude.

  dependencies { classpath "com.android.tools.build:gradle:0.9.0" } 

El problema estaba en la mala biblioteca de soporte v7. Después de actualizar todo bien.

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